 /*******************************************************************************
  * Copyright (c) 2005, 2006 IBM Corporation and others.
  * All rights reserved. This program and the accompanying materials
  * are made available under the terms of the Eclipse Public License v1.0
  * which accompanies this distribution, and is available at
  * http://www.eclipse.org/legal/epl-v10.html
  *
  * Contributors:
  * IBM Corporation - initial API and implementation
  *******************************************************************************/
 package org.eclipse.core.internal.databinding;

 /**
  * Class Pair. Represents a mathematical pair of objects (a, b).
  * @since 1.0
  */
 public class Pair {

     /**
      * a in the pair (a, b)
      */
     public final Object a;

     /**
      * b in the pair (a, b)
      */
     public final Object b;

     /**
      * Construct a Pair(a, b)
      *
      * @param a a in the pair (a, b)
      * @param b b in the pair (a, b)
      */
     public Pair(Object a, Object b) {
         this.a = a;
         this.b = b;
     }

     /* (non-Javadoc)
      * @see java.lang.Object#equals(java.lang.Object)
      */
     public boolean equals(Object obj) {
         if (obj.getClass() != Pair.class) {
             return false;
         }
         Pair other = (Pair) obj;
         return a.equals(other.a) && b.equals(other.b);
     }

     /* (non-Javadoc)
      * @see java.lang.Object#hashCode()
      */
     public int hashCode() {
         return a.hashCode() + b.hashCode();
     }
 }

